Disable USE_UNICODE_WRITER for Py3.11 (GH-4480)
Disable USE_UNICODE_WRITER for Py3.11 (GH-4480)

Python 3.11 hid _PyLong_FormatAdvancedWriter and
_PyFloat_FormatAdvancedWriter. I've disabled USE_UNICODE_WRITER
for the moment but I suspect we want to find replacements in the longer term.

da-woods/cython,cython/cython,da-woods/cython,da-woods/cython,cython/cython,cython/cython,scoder/cython,cython/cython,scoder/cython,scoder/cython,scoder/cython,da-woods/cython